Author Topic: do HID feature requests send VID PID?  (Read 155 times)

ulao

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do HID feature requests send VID PID?
« on: July 03, 2017, 06:10:18 pm »
I have 4 identical devices that differ only by PID. I run a 1 second loop for get feature requests and they pick up each other. I was under the impression that each request sends the address (VID,PID) so that is could be verified. Is this not true?

Jan Axelson

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Re: do HID feature requests send VID PID?
« Reply #1 on: July 03, 2017, 08:33:08 pm »
The address and endpoint fields specify the source or destination of data. See 8.3.2 and its subsections in the USB 2.0 spec.
« Last Edit: July 04, 2017, 10:38:01 am by Jan Axelson »